Home / 768,059,772.85-1,059,663,023.75-500,013,554.18

Finding the Fourth Proportional to 768,059,772.85, 1,059,663,023.75 and 500,013,554.18

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Solution

The fourth proportional to 768,059,772.85, 1,059,663,023.75 and 500,013,554.18 is: 689,849,792.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,059,772.85 : 1,059,663,023.75 = 500,013,554.18 : x
  2. Step 2: Convert to fraction form
    768,059,772.85/1,059,663,023.75 = 500,013,554.18/x
  3. Step 3: Cross multiply
    768,059,772.85x = 1,059,663,023.75 × 500,013,554.18
  4. Step 4: Simplify right side
    768,059,772.85x = 529,845,874,734,315,008
  5. Step 5: Solve for x
    x = 529,845,874,734,315,008/768,059,772.85
  6. Step 6: Final answer
    x = 689,849,792.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.